# AD590KRZ-RL

**Analog Devices** · Temperature Sensors · SOIC-8

AD590KRZ-RL from Analog Devices, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No connect; this pin is not bonded to the die internally. |
| 2 | V+ | power_in | Positive supply terminal; for supply voltages between 4 V and 30 V the device acts as a constant current regulator passing 1 μA/K. |
| 3 | V- | power_in | Negative terminal of the two-terminal device; the datasheet notes V− should be at least −4 V in the 2-trim circuit. |
| 4 | NC | unconnected | No connect; this pin is not bonded to the die internally. |
| 5 | NC | unconnected | No connect; this pin is not bonded to the die internally. |
| 6 | NC | unconnected | No connect; this pin is not bonded to the die internally. |
| 7 | NC | unconnected | No connect; this pin is not bonded to the die internally. |
| 8 | NC | unconnected | No connect; this pin is not bonded to the die internally. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8 |
| Category | Sensors |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating Voltage Range |  | 4 |  | 30 | V |  | 3 |
| Calibration Error @ 25°C |  | -2.5 |  | 2.5 | °C | @ 25°C | 3 |
| Absolute Error (Over Rated Performance Temperature Range) |  | -5.5 |  | 5.5 | °C | Without External Calibration Adjustment | 3 |
| Absolute Error (Over Rated Performance Temperature Range) |  | -2 |  | 2 | °C | With 25°C Calibration Error Set to Zero | 3 |
| Nonlinearity |  | -1 |  | 1 | °C | For 8-Lead SOIC Package | 3 |
| Repeatability |  | -0.1 |  | 0.1 | °C | Maximum deviation between +25°C readings after temperature cycling between −55°C and +150°C; guaranteed, not tested | 3 |
| Long-Term Drift |  | -0.1 |  | 0.1 | °C | Constant 5 V, constant 125°C; guaranteed, not tested | 3 |
| Power Supply Rejection (4 V ≤ VS ≤ 5 V) |  |  |  | 0.5 | µA/V | 4 V ≤ VS ≤ 5 V | 3 |
| Power Supply Rejection (5 V ≤ VS ≤ 15 V) |  |  |  | 0.2 | µV/V | 5 V ≤ VS ≤ 15 V | 3 |
| Power Supply Rejection (15 V ≤ VS ≤ 30 V) |  |  |  | 0.1 | µA/V | 15 V ≤ VS ≤ 30 V | 3 |
| Case Isolation to Either Lead |  | 1010 |  |  | Ω |  | 3 |
| Effective Shunt Capacitance |  |  |  | 100 | pF |  | 3 |
| Electrical Turn-On Time |  |  |  | 20 | µs |  | 3 |
| Reverse Bias Leakage Current |  |  |  | 10 | pA | Reverse Voltage = 10 V | 3 |
| Forward Voltage (E+ or E−) |  |  |  | 44 | V |  | 5 |
| Reverse Voltage (E+ to E−) |  | -20 |  |  | V |  | 5 |
| Breakdown Voltage (Case E+ or E−) |  | -200 |  | 200 | V | Case E+ or E− | 5 |
| Rated Performance Temperature Range |  | -55 |  | 150 | °C |  | 5 |
| Storage Temperature Range |  | -65 |  | 155 | °C |  | 5 |
| Lead Temperature (Soldering) |  |  |  | 300 | °C | Soldering, 10 sec | 5 |
| Nominal Current Output @ 25°C (298.2 K) |  |  | 298.2 |  | µA |  | 3 |
| Nominal Temperature Coefficient |  |  | 1 |  | µA/K |  | 3 |
| Current Noise |  |  | 40 |  | pA/√Hz |  | 3 |

## CAD (KiCad official)

- Symbol: `AD590KRZ-RL`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ad590krz-rl-etched.step` / `ad590krz-rl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad590krz-rl.step` / `ad590krz-rl.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/AD590.pdf) (16 pp, sha256 `9d3123b42db8fee7`, retrieved 2026-11-02, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ad590krz-rl-datasheet.pdf)